All files / src/app/services twinpad-api.service.ts

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import { Injectable } from '@angular/core';
import { HttpClient, HttpHeaders, HttpParams } from '@angular/common/http';
import { Observable, Subscription, interval, of, map, startWith, exhaustMap, timer, BehaviorSubject } from 'rxjs';
 
import { Signal, SignalData, SignalsData, SignalSample, SampleStats, SignalStats, SignalsPreset, ForcedSignal } from '../models/signals';
import { TwinPadStatus, ServicesStatus, Slash } from '../models/status';
import { ListResponse, CommandResponse } from '../models/response';
import { Device, DeviceSetup, Mode, DeviceState } from '../models/devices';
import { EventRule, Event, TwinPadActivity } from '../models/events';
import { Campaign, Phase } from '../models/campaign';
import { Command } from '../models/commands';
import { GraphTheme, LineStyle } from '../models/colorSetting';
 
import { catchError, switchMap } from 'rxjs/operators';
import { Video } from '../models/videos';
import { CustomView } from '../models/customView';
import { User } from '../models/users';
import { jwtDecode } from 'jwt-decode';
import { FormGroup } from '@angular/forms';
import { AccessToken, AccessTokenPayload } from '../models/token';
import { InitService } from './init.service';
import { Router } from '@angular/router';
 
 
@Injectable({
  providedIn: 'root'
})
export class TwinpadApiService {
  // TODO: if api url search fails, display a global error and retry
  loggedInUserBehaviorSubject$: BehaviorSubject<boolean>;
  cloudStatusSubscription: Subscription;
  cloudStatusBehaviorSubject$: BehaviorSubject<TwinPadStatus>;
  devicesSubscription: Subscription;
  devicesBehaviorSubject$: BehaviorSubject<Device[]>;
 
  devicesRefreshTime: number = 3;
  statusRefreshTime: number = 10;
 
  constructor(protected http: HttpClient, private initService: InitService) {
    // TODO: if api url is null, maybe repoll periodicallly and display a message to user that no backend is found
    this.loggedInUserBehaviorSubject$ = new BehaviorSubject(this.isTokenValid());
    this.cloudStatusBehaviorSubject$ = new BehaviorSubject(new TwinPadStatus(new ServicesStatus("up")));
    this.devicesBehaviorSubject$ = new BehaviorSubject<Device[]>([]);
    this.initService.isUrlFound$.subscribe({
      next: isUrlFound => {
        Eif (isUrlFound) {
          this.loggedInUserSubscribe();
          this.cloudStatusBehaviorSubject$.next(new TwinPadStatus(new ServicesStatus("up")));
        }
        else {
          this.cloudStatusBehaviorSubject$.next(new TwinPadStatus(new ServicesStatus("down")));
          timer(1000 * this.statusRefreshTime).subscribe(() => {
            initService.findApiUrl();
          });
        }
      }
    });
  }
 
  protected apiRequest<T>(
    endpoint: string,
    method: 'GET' | 'POST' | 'PATCH' | 'PUT' | 'DELETE' = "GET",
    options?: {
      body?: any; // eslint-disable-line @typescript-eslint/no-explicit-any
      params?: HttpParams | { [param: string]: string | string[] | number };
      headers?: HttpHeaders | { [header: string]: string | string[] };
      responseType?: 'json';
    }
  ): Observable<T> {
    if (endpoint[0] == '/') {
      endpoint = endpoint.slice(1);
    }
 
    const url = `${this.initService.apiUrl}/${endpoint}`;
 
    switch (method) {
      case 'POST':
        return this.http.post<T>(url, options?.body, options);
      case 'PUT':
        return this.http.put<T>(url, options?.body, options);
      case 'PATCH':
        return this.http.patch<T>(url, options?.body, options);
      case 'DELETE':
        return this.http.delete<T>(url, options);
      case 'GET':
        return this.http.get<T>(url, options);
      default:
        console.error('Unrecognized method', method);
        throw new Error("Unrecognized method");
    }
 
  }
 
 
  // Generic periodic function
  callPeriodically<T>(
    method: () => Observable<T>,
    period: number,
    initialDelay: number = 0
  ): Observable<T> {
    return new Observable(observer => {
      const subscription = timer(initialDelay).pipe(
        switchMap(() => interval(period).pipe(startWith(0))),
        exhaustMap(() =>
          method().pipe(
            catchError(err => {
              return new Observable<T>(subscriber => {
                subscriber.error(err);
                subscriber.complete();
              });
            })
          )
        )
      ).subscribe({
        next: value => observer.next(value),
        error: err => observer.error(err),
        complete: () => observer.complete()
      });
 
      return () => {
        subscription.unsubscribe();
      };
    });
  }
 
  // Generic periodic function
  callPeriodicallyBehaviorSubject<T>(
    method: () => Observable<T>,
    behaviorSubject: BehaviorSubject<T>,
    period: number,
    initialDelay: number = 0,
  ): Subscription {
 
    const subscription = timer(initialDelay).pipe(
      switchMap(() => interval(period).pipe(startWith(0))),
      exhaustMap(() =>
        method().pipe(
          catchError((err) => {
            return new Observable<T>((subscriber) => {
              subscriber.error(err);
              subscriber.complete();
            });
          })
        )
      )
    ).subscribe({
      next: (value) => behaviorSubject.next(value),
      error: (err) => behaviorSubject.error(err),
      complete: () => behaviorSubject.complete()
    });
 
    // Return the BehaviorSubject's subscription
    return subscription;
  }
 
 
  getVersion(): Observable<Slash> {
    return this.apiRequest<Slash>("");
  }
 
 
  private getStatus(): Observable<TwinPadStatus> {
    return this.apiRequest<TwinPadStatus>("status").pipe(
      map((response: TwinPadStatus) => {
        // Deserialize response into TwinPadStatus instance. Move this to models?
        const services = Object.assign(new ServicesStatus('down'), response['services']);
        const status = Object.assign(new TwinPadStatus(services), response);
        status.services = services;
        if ((this.devicesSubscription === undefined || this.devicesSubscription.closed) && status.services.backend === "up") {
          this.deviceSubscribe();
        }
        return status;
      }),
      catchError(error => {
        console.error('Error fetching status:', error);
        // Return a custom object in case of error
        const services = new ServicesStatus("down");
        const status = new TwinPadStatus(services);
        return of(status);
      })
    );
  }
 
  getSignalStats(): Observable<SignalStats> {
    return this.apiRequest<SignalStats>("signals/stats");
  }
 
 
  private getDevices(): Observable<Device[]> {
    return this.apiRequest<Device[]>("devices");
  }
 
  getDevice(device_id: string): Observable<Device> {
    return this.apiRequest<Device>(`devices/${device_id}`);
  }
 
  getDeviceSetups(): Observable<DeviceSetup[]> {
    return this.apiRequest<DeviceSetup[]>("device-setups");
  }
 
  getDeviceSetup(device_setup_id: string): Observable<DeviceSetup> {
    return this.apiRequest<DeviceSetup>(`device-setups/${device_setup_id}`);
  }
 
  deleteDeviceSetup(device_setup_id: string): Observable<DeviceSetup> {
    return this.apiRequest<DeviceSetup>(`device-setups/${device_setup_id}`, "DELETE");
  }
 
  getDeviceStates(device_id: string, limit: number, offset: number = 0, sort_by: string, modified_properties: string[]): Observable<ListResponse<DeviceState>> {
    const params: HttpParams = new HttpParams({ fromObject: { limit: limit, offset: offset, sort_by: sort_by, modified_properties: `in:${modified_properties}` } });
 
    return this.apiRequest<ListResponse<DeviceState>>(`devices/${device_id}/states`, "GET", { params: params });
  }
 
  getNumberSamples(min_timestamp: number, max_timestamp: number, recomputeAmount: boolean = false): Observable<TwinPadActivity[]> {
    const params = new HttpParams({ fromObject: { min_timestamp: min_timestamp, max_timestamp: max_timestamp, recompute_amount: recomputeAmount } });
    return this.apiRequest<TwinPadActivity[]>("number-samples", "GET", { params: params });
  }
 
  getSignals(limit: number, offset: number = 0, filter: string | null = null, device_id: string | null = null, signalIds: string[] | null = null, sortBy: string | null = null): Observable<ListResponse<Signal>> {
    let params: HttpParams = new HttpParams({ fromObject: { limit: limit, offset: offset } });
 
    const signalIdFilter = [];
 
    if (device_id !== null) {
      signalIdFilter.push(`startswith:${device_id}`);
    }
    if (signalIds !== null) {
      signalIdFilter.push(`in:[${signalIds.join(',')}]`);
    }
    if (filter !== null) {
      signalIdFilter.push(`contains:${filter}`);
    }
    if (sortBy !== null) {
      params = params.set("sort_by", sortBy);
    }
 
    if (signalIdFilter.length) {
      params = params.set("signal_id", signalIdFilter.join("|"));
    }
    return this.apiRequest<ListResponse<Signal>>("signals", "GET", { params: params }).pipe(
      map((response: ListResponse<Signal>) => {
        const signals = [];
        for (const item of response['items']) {
          const device = Object.assign(new Device(), item['device']);
          const signal = Object.assign(new Signal(), item);
          signal.device = device;
          signals.push(signal);
        }
        response = Object.assign(new ListResponse(), response);
        response.items = signals;
        return response;
      })
    );
  }
 
  getSignalsIds(): Observable<string[]> {
    return this.apiRequest<string[]>("signals/ids");
  }
 
  getSignalsForcibility(signalIds: string[]): Observable<Map<string, boolean>> {
    return this.apiRequest<{ [key: string]: boolean }>("/signals/forcibility", "GET", { params: { signal_ids: signalIds } }).pipe(
      map((response) => {
        const newMap: Map<string, boolean> = new Map();
        for (const [key, value] of Object.entries(response)) {
          newMap.set(key, value);
        }
        return newMap;
      })
    );
  }
 
  getForcedSignals(limit: number, offset: number = 0, sortBy: string[]): Observable<ListResponse<ForcedSignal>> {
    let params: HttpParams = new HttpParams({ fromObject: { limit: limit, offset: offset } });
    params = params.set("sort_by", sortBy.join(','));
    return this.apiRequest<ListResponse<ForcedSignal>>("signals/forced", "GET", { params: params });
  }
 
  getSignal(signal_id: string): Observable<Signal> {
    return this.apiRequest<Signal>(`signals/${signal_id}`).pipe(
      map((response: Signal) => {
        // Deserialize
        return Object.assign(new Signal(), response);
      }));
  }
 
  getSignalData(signal_id: string, number_samples_max: number = 5000): Observable<SignalData> {
    return this.apiRequest<SignalData>(`signals/${signal_id}/data`, "GET", { params: { number_samples_max: number_samples_max } });
  }
 
  getSignalNumberSamples(signal_id: string): Observable<SampleStats> {
    return this.apiRequest<SampleStats>(`signals/${signal_id}/number-samples`).pipe(
      map((response: SampleStats) => {
        return response;
      })
    );
  }
 
  getSignalsData(signal_ids: string[], number_samples_max: number = 5000, min_timestamp: number | null = null, max_timestamp: number | null = null, interpolateBounds: boolean): Observable<SignalsData> {
    let params: HttpParams = new HttpParams({ fromObject: { signal_ids: signal_ids, number_samples_max: number_samples_max, interpolate_bounds: interpolateBounds } });
    Eif (min_timestamp !== null) {
      params = params.set("min_timestamp", min_timestamp);
    }
    Eif (max_timestamp !== null) {
      params = params.set("max_timestamp", max_timestamp);
    }
 
    return this.apiRequest<SignalsData>(`signals-data`, "GET", { params: params }).pipe(
      map((response: SignalsData) => { return SignalsData.deserialize(response); })
    );
  }
 
  getSignalsDataWithInterestWindow(signal_ids: string[], windowMaxNumberSamples: number = 300, outsideMaxNumberSamples: number = 300,
    windowMinTs: number | null = null, windowMaxTs: number | null = null,
    minTimestamp: number | null = null, maxTimestamp: number | null = null): Observable<SignalsData> {
    let params: HttpParams = new HttpParams({ fromObject: { signal_ids: signal_ids, window_max_number_samples: windowMaxNumberSamples, outside_max_number_samples: outsideMaxNumberSamples } });
    Eif (windowMinTs !== null) {
      params = params.set("window_min_timestamp", windowMinTs);
    }
    Eif (windowMaxTs !== null) {
      params = params.set("window_max_timestamp", windowMaxTs);
    }
    Eif (minTimestamp !== null) {
      params = params.set("min_timestamp", minTimestamp);
    }
    Eif (maxTimestamp !== null) {
      params = params.set("max_timestamp", maxTimestamp);
    }
 
    return this.apiRequest<SignalsData>("signals-data/interest-window", "GET", { params: params }).pipe(
      map((response: SignalsData) => { return SignalsData.deserialize(response); })
    );
  }
 
  getSignalValue(signal_id: string) {
    return this.apiRequest<SignalSample>(`signals/${signal_id}/last-value`).pipe(
      map((response: SignalSample) => {
        // Deserialize
        return Object.assign(new SignalSample(), response);
      }));
 
  }
 
  getSignalFirstValue(signal_id: string) {
    return this.apiRequest<SignalSample>(`signals/${signal_id}/first-value`).pipe(
      map((response: SignalSample) => {
        // Deserialize
        return Object.assign(new SignalSample(), response);
      }));
  }
 
  getSignalValues(signal_ids: string[]) {
    const params: HttpParams = new HttpParams({ fromObject: { signal_ids: signal_ids } });
    return this.apiRequest<SignalSample[]>(`signals/last-value`, "GET", { params: params }).pipe(
      map((response: SignalSample[]) => {
        // Deserialize
        const samples = [];
        for (const response_sample of response) {
          samples.push(Object.assign(new SignalSample(), response_sample));
        }
        return samples;
      }));
  }
 
  getSignalValuesWithInterestWindow(signal_ids: string[], minTimestamp: number) {
    const params: HttpParams = new HttpParams({ fromObject: { signal_ids: signal_ids, min_timestamp: minTimestamp } });
    return this.apiRequest<SignalSample[]>(`signals/last-value/interest-window`, "GET", { params: params }).pipe(
      map((response: SignalSample[]) => {
        // Deserialize
        const samples = [];
        for (const response_sample of response) {
          samples.push(Object.assign(new SignalSample(), response_sample));
        }
        return samples;
      }));
  }
 
  getSignalFirstValues(signal_ids: string[]) {
    const params: HttpParams = new HttpParams({ fromObject: { signal_ids: signal_ids } });
    return this.apiRequest<SignalSample[]>("signals/first-value", "GET", { params: params }).pipe(
      map((response: SignalSample[]) => {
        // Deserialize
        const samples = [];
        for (const response_sample of response) {
          samples.push(Object.assign(new SignalSample(), response_sample));
        }
        return samples;
      }));
  }
 
  changeDeviceMode(device: Device, newMode: Mode) {
    return this.apiRequest<CommandResponse>(`devices/${device.device_id}`, "PATCH", { body: { mode_id: newMode.mode_id } });
  }
 
  sendSignalCommand(signal: Signal, value: number | string | boolean, forced_value: number | string | boolean | null) {
    return this.apiRequest<CommandResponse>(`signals/${signal.signal_id}`, "PATCH", { body: { value: value, forced_value: forced_value } });
  }
 
  sendSignalForcedValue(signal: Signal, forced_value: number | string | boolean) {
    return this.apiRequest<CommandResponse>(`signals/${signal.signal_id}`, "PATCH", { body: { forced_value: forced_value } });
  }
 
  sendSignalUnforce(signalId: string) {
    return this.apiRequest<CommandResponse>(`signals/${signalId}`, "PATCH", { body: { forced_value: null } });
  }
 
  checkIfCanControlSignal(signal: Signal) {
    return this.apiRequest<boolean>(`signals/${signal.signal_id}/can-force`);
  }
 
  getEvents(limit: number, offset: number = 0, sortBy: string[], timestamp_min: number | null = null, timestamp_max: number | null = null, eventRuleId: string | null = null): Observable<ListResponse<Event>> {
    let params = new HttpParams({ fromObject: { limit: limit, offset: offset } });
    params = params.set("sort_by", sortBy.join(','));
    const timestamp_req: string[] = [];
    Iif (timestamp_min !== null) {
      timestamp_req.push('gte:' + timestamp_min.toString());
    }
    if (timestamp_max !== null) {
      timestamp_req.push('lte:' + timestamp_max.toString());
    }
    if (timestamp_req.length > 0) {
      params = params.set("timestamp", timestamp_req.join('|'));
    }
    Iif (eventRuleId !== null) {
      params = params.set("event_rule_id", eventRuleId);
    }
 
    return this.apiRequest<ListResponse<Event>>("events", "GET", { params: params });
  }
 
  getEvent(eventId: string): Observable<Event> {
    return this.apiRequest<Event>(`events/${eventId}`).pipe(
      map((response: Event) => {
        // Deserialize
        const eventRule = Object.assign(new EventRule(), response['event_rule']);
        const event = Object.assign(new Event(), response);
        event.event_rule = eventRule;
        return event;
      }));
  }
 
  getNumberEvents(min_timestamp: number, max_timestamp: number, recomputeAmount: boolean = false): Observable<TwinPadActivity[]> {
    const params = new HttpParams({ fromObject: { min_timestamp: min_timestamp, max_timestamp: max_timestamp, recompute_amount: recomputeAmount } });
    return this.apiRequest<TwinPadActivity[]>("number-events", "GET", { params: params });
  }
 
  getNumberCommands(min_timestamp: number, max_timestamp: number, recomputeAmount: boolean = false): Observable<TwinPadActivity[]> {
    const params = new HttpParams({ fromObject: { min_timestamp: min_timestamp, max_timestamp: max_timestamp, recompute_amount: recomputeAmount } });
    return this.apiRequest<TwinPadActivity[]>("number-commands", "GET", { params: params });
  }
 
  getEventRules(limit: number, offset: number = 0, sortBy: string[]): Observable<ListResponse<EventRule>> {
    let params = new HttpParams({ fromObject: { limit: limit, offset: offset } });
    params = params.set("sort_by", sortBy.join(','));
 
    return this.apiRequest<ListResponse<EventRule>>("event-rules", "GET", { params: params });
  }
 
  getEventRule(eventRuleId: string): Observable<EventRule> {
    return this.apiRequest<EventRule>(`event-rules/${eventRuleId}`).pipe(
      map((response: EventRule) => {
        // Deserialize
        const event_rule = Object.assign(new EventRule(), response);
        return event_rule;
      }));
  }
 
  downloadSignalsDataZip(file_format: string, signal_ids: string[], min_timestamp: number | null = null, max_timestamp: number | null = null): Observable<Blob> {
    let params: HttpParams = new HttpParams({ fromObject: { file_format: file_format, signal_ids: signal_ids } });
    Iif (min_timestamp !== null) {
      params = params.set("min_timestamp", min_timestamp);
    }
    Iif (max_timestamp !== null) {
      params = params.set("max_timestamp", max_timestamp);
    }
 
    return this.apiRequest<Blob>("signals-data/export_zip", "GET", { params: params, responseType: 'blob' as 'json' },);
  }
 
  downloadSignalsDataHDF5(signal_ids: string[], min_timestamp: number | null = null, max_timestamp: number | null = null): Observable<Blob> {
    let params: HttpParams = new HttpParams({ fromObject: { signal_ids: signal_ids } });
    Iif (min_timestamp !== null) {
      params = params.set("min_timestamp", min_timestamp);
    }
    Iif (max_timestamp !== null) {
      params = params.set("max_timestamp", max_timestamp);
    }
 
    return this.apiRequest<Blob>("signals-data/export_hdf5", "GET", { params: params, responseType: 'blob' as 'json' },);
  }
 
  getCampaigns(): Observable<Campaign[]> {
    return this.apiRequest<Campaign[]>("campaigns");
  }
 
  getCampaignById(campaignId: string): Observable<Campaign> {
    return this.apiRequest<Campaign>(`campaigns/${campaignId}`);
  }
 
  addCampaign(campaignName: string, campaignDescription?: string): Observable<object> {
    const options = {
      headers: new HttpHeaders().set('Content-type', 'application/json'),
      body: { "name": campaignName, "description": campaignDescription }
    };
    return this.apiRequest("campaigns", "POST", options);
  }
 
  editCampaign(campaignId: string, campaignName: string, campaignDescription?: string): Observable<object> {
    const options = { headers: new HttpHeaders().set('Content-type', 'application/json'), body: { "name": campaignName, "description": campaignDescription } };
    return this.apiRequest(`campaigns/${campaignId}`, "PATCH", options);
  }
 
  deleteCampaign(campaignId: string): Observable<object> {
    return this.apiRequest(`campaigns/${campaignId}`, "DELETE");
  }
 
  getPhases(campaignId: string): Observable<Phase[]> {
    return this.apiRequest<Phase[]>(`campaigns/${campaignId}/phases`);
  }
 
  getPhase(phaseId: string): Observable<Phase> {
    return this.apiRequest<Phase>(`phases/${phaseId}`);
  }
 
  addPhase(campaignId: string, phaseName: string, phaseDateStart: number, phaseDateEnd: number, phaseDescription?: string): Observable<Phase> {
    const options = {
      headers: new HttpHeaders().set('Content-type', 'application/json'),
      body: { "name": phaseName, "description": phaseDescription, "start_at": phaseDateStart, "end_at": phaseDateEnd, "campaign_id": campaignId }
    };
    return this.apiRequest("phases", "POST", options);
  }
 
  editPhase(phaseName: string, phaseDateStart: number, phaseDateEnd: number, campaignId: string, phaseId?: string, phaseDescription?: string,) {
    const options = {
      headers: new HttpHeaders().set('Content-type', 'application/json'),
      body: { "name": phaseName, "description": phaseDescription, "start_at": phaseDateStart, "end_at": phaseDateEnd, "campaign_id": campaignId }
    };
    return this.apiRequest(`phases/${phaseId}`, "PATCH", options);
  }
 
  deletePhase(phaseId?: string) {
    return this.apiRequest(`phases/${phaseId}`, "DELETE");
  }
 
  getVideos(): Observable<Video[]> {
    return this.apiRequest<Video[]>("videos");
  }
 
  getStream(video_id: string): Observable<string> {
    return this.apiRequest<string>(`videos/${video_id}`);
  }
 
  getCommands(limit: number, offset: number = 0, filter: string | null = null, sortBy: string[], minTimestamp: number, maxTimestamp: number): Observable<ListResponse<Command>> {
    let params: HttpParams = new HttpParams({ fromObject: { limit: limit, offset: offset } });
 
    const descriptionFilter = [];
    Iif (filter !== null) {
      descriptionFilter.push(`contains:${filter}`);
    }
    Iif (descriptionFilter.length) {
      params = params.set("description", descriptionFilter.join("|"));
    }
 
    params = params.set("sort_by", sortBy.join(','));
 
    const timestamp_req: string[] = [];
    Iif (minTimestamp !== undefined) {
      timestamp_req.push('gte:' + minTimestamp.toString());
    }
    Iif (maxTimestamp !== undefined) {
      timestamp_req.push('lte:' + maxTimestamp.toString());
    }
    Iif (timestamp_req.length > 0) {
      params = params.set("sent_at", timestamp_req.join('|'));
    }
 
    return this.apiRequest<ListResponse<Command>>("commands", "GET", { params: params });
  }
 
  getCustomViews(): Observable<CustomView[]> {
    return this.apiRequest<CustomView[]>("custom-views", "GET");
  }
 
  getCustomViewsFromUserId(userId: string): Observable<CustomView[]> {
    return this.apiRequest<CustomView[]>(`users/${userId}/custom-views`, "GET");
  }
 
  getCustomViewById(customViewId: string): Observable<CustomView> {
    return this.apiRequest<CustomView>(`custom-views/${customViewId}`, "GET");
  }
 
  createCustomView(customView: CustomView): Observable<CustomView> {
    const options = {
      headers: new HttpHeaders().set('Content-type', 'application/json'),
      body: { "name": customView.name, "user_id": customView.user_id, "configuration": customView.configuration }
    };
 
    return this.apiRequest<CustomView>("custom-views", "POST", options);
  }
 
  updateCustomView(customView: CustomView): Observable<CustomView> {
    const options = {
      headers: new HttpHeaders().set('Content-type', 'application/json'),
      body: { "name": customView.name, "user_id": customView.user_id, "configuration": customView.configuration }
    };
    return this.apiRequest<CustomView>(`custom-views/${customView.id}`, "PATCH", options);
  }
 
  deleteCustomView(customViewId: string): Observable<boolean> {
    return this.apiRequest<boolean>(`custom-views/${customViewId}`, "DELETE");
  }
 
  getUserSignalsPresets(): Observable<SignalsPreset[]> {
    return this.apiRequest<SignalsPreset[]>(`signals-presets`, "GET");
  }
 
  getSignalsPresetById(signalsPresetId: string): Observable<SignalsPreset> {
    return this.apiRequest<SignalsPreset>(`signals-presets/${signalsPresetId}`, "GET");
  }
 
  createSignalsPreset(name: string, signalIds: string[]): Observable<string> {
    const options = {
      headers: new HttpHeaders().set('Content-type', 'application/json'),
      body: { "name": name, "signal_ids": signalIds }
    };
    return this.apiRequest<string>("signals-presets", "POST", options);
  }
 
  updateSignalsPreset(signalsPreset: SignalsPreset): Observable<SignalsPreset> {
    const options = {
      headers: new HttpHeaders().set('Content-type', 'application/json'),
      body: { "name": signalsPreset.name, "signal_ids": signalsPreset.signal_ids }
    };
    return this.apiRequest<SignalsPreset>(`signals-presets/${signalsPreset.id}`, "PATCH", options);
  }
 
  deleteSignalsPreset(signalsPresetId: string): Observable<boolean> {
    return this.apiRequest<boolean>(`signals-presets/${signalsPresetId}`, "DELETE");
  }
 
  createGraphTheme(newTheme: GraphTheme) {
    const options = {
      headers: new HttpHeaders().set('Content-type', 'application/json'),
      body: newTheme
    };
    return this.apiRequest<GraphTheme>("/graph-themes", "POST", options);
  }
 
  getGraphThemes() {
    const params: HttpParams = new HttpParams({ fromObject: { sort_by: "created_by_user:-1" } });
    return this.apiRequest<ListResponse<GraphTheme>>("/graph-themes", "GET", { params: params });
  }
 
  getFavoriteGraphThemes() {
    return this.apiRequest<ListResponse<GraphTheme>>("/graph-themes/own");
  }
 
  updateGraphTheme(themeId: string, themeUpdate: GraphTheme) {
    const updateDict: { [key: string]: string | boolean | LineStyle } = {};
    for (const [key, value] of Object.entries(themeUpdate)) {
      Eif (value !== undefined) {
        updateDict[key] = value;
      }
    }
    const options = {
      headers: new HttpHeaders().set('Content-type', 'application/json'),
      body: updateDict
    };
    return this.apiRequest<GraphTheme>(`/graph-themes/${themeId}`, "PATCH", options);
  }
 
  getSignalsGraphThemes(signalIds: string[]) {
    const params: HttpParams = new HttpParams({ fromObject: { signal_ids: signalIds } });
    return this.apiRequest<object>("/signals-appearances", "GET", { params: params });
  }
 
  deleteGraphTheme(themeId: string) {
    return this.apiRequest(`/graph-themes/${themeId}`, "DELETE");
  }
 
  getToken() {
    return localStorage.getItem("accessToken");
  }
 
  getTokenPayload(): AccessTokenPayload | null {
    const token = this.getToken();
    if (token === null) {
      return null;
    }
    return jwtDecode<AccessTokenPayload>(token);
  }
 
  isAdminfromToken() {
    const payload = this.getTokenPayload();
    if (payload === null) {
      return false;
    }
    return payload.admin;
  }
 
  logout() {
    localStorage.removeItem('accessToken');
    this.loggedInUserBehaviorSubject$.next(false);
  }
 
  redirectToLogin(router: Router) {
    const params: { [key: string]: string } = {};
    if (window.location.pathname !== "/") {
      params["redirectTo"] = window.location.pathname?.slice(1);
    }
    router.navigate(['/login'], { queryParams: params });
  }
 
  login(loginForm: FormGroup): Observable<AccessToken> {
    const body = new URLSearchParams();
    body.set('username', loginForm.get('email')?.value);
    body.set('password', loginForm.get('password')?.value);
    const options = {
      headers: new HttpHeaders().set('Content-type', 'application/x-www-form-urlencoded'),
      body: body.toString()
    };
    return this.apiRequest<AccessToken>('token', "POST", options);
  }
 
 
  register(form_firstname: string, form_lastname: string, form_email: string, form_password: string) {
    const payload = { "firstname": form_firstname, "lastname": form_lastname, "email": form_email, "password": form_password };
    return this.apiRequest('users', "POST", { body: payload });
  }
 
  getProfile(userId?: string): Observable<User> {
    if (userId) {
      return this.apiRequest<User>('users/' + userId, "GET", {});
    }
    return this.apiRequest<User>('users/me', "GET", {});
  }
 
  editProfile(profileForm: FormGroup, userId: string): Observable<User> {
    const payload = {
      "id": userId,
      "firstname": profileForm.get('firstname')?.value,
      "lastname": profileForm.get('lastname')?.value,
      "email": profileForm.get('email')?.value,
      "password": profileForm.get('password')?.value,
      "is_active": profileForm.get('userBlocked')?.value,
      "is_admin": profileForm.get('userAdministrator')?.value
    };
    const options = {
      headers: new HttpHeaders().set('Content-type', 'application/x-www-form-urlencoded'),
      body: payload
    };
    return this.apiRequest<User>('users/' + userId, "PATCH", options);
  }
 
  getUsers(): Observable<User[]> {
    return this.apiRequest<User[]>("users", "GET");
  }
 
 
  isTokenValid(): boolean {
    const token = localStorage.getItem("accessToken");
    if (token != null) {
      const exp = jwtDecode(token).exp;
      Eif (exp != null && exp > (Date.now() / 1000)) {  // Divide by 1000 to get same timestamp length
        return true;
      }
    }
    localStorage.removeItem('accessToken');
    return false;
  }
 
  loggedInUserSubscribe() {
    this.loggedInUserBehaviorSubject$.subscribe({
      next: isUserLoggedIn => {
        if (isUserLoggedIn) {
          Eif (this.cloudStatusSubscription === undefined || this.cloudStatusSubscription.closed) {
            // also subscribes to device if backend is up
            this.statusSubscribe();
          }
        }
        else {
          this.cloudStatusSubscription?.unsubscribe();
          this.devicesSubscription?.unsubscribe();
        }
      },
      error: (err) => {
        console.log(err);
      }
    });
  }
 
  deviceSubscribe(initialDelay?: number) {
    this.devicesSubscription?.unsubscribe();
    Iif (this.devicesBehaviorSubject$.closed || !this.devicesBehaviorSubject$.observed) {
      this.devicesBehaviorSubject$ = new BehaviorSubject<Device[]>([]);
    }
    this.devicesSubscription = this.callPeriodicallyBehaviorSubject(
      () => this.getDevices(),
      this.devicesBehaviorSubject$,
      1000 * this.devicesRefreshTime,
      initialDelay,
    );
  }
 
  statusSubscribe(initialDelay?: number) {
    this.cloudStatusSubscription?.unsubscribe();
    this.cloudStatusSubscription = this.callPeriodicallyBehaviorSubject(
      () => this.getStatus(),
      this.cloudStatusBehaviorSubject$,
      1000 * this.statusRefreshTime,
      initialDelay,
    );
  }
}